详解MyEclipse中搭建spring-boot+mybatis+freemarker框架
1.在MyEclipse里创建一个maven项目。File>New>Maven Project:
勾选图中红色部分,然后点击Next。
2.填写下图中红色部分然后点击Finish。
3.此时一个maven项目已经生成,目录结构如下:
4.打开pom.xml在里面编辑如下内容:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.lm.spring-boot</groupId> <artifactId>spring-boot</artifactId> <version>0.0.1-SNAPSHOT</version> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.0.RELEASE</version> </parent> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <!--视图采用freemarker渲染 --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-freemarker</artifactId> </dependency> <!-- JDBC --> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-jdbc</artifactId> </dependency> <!-- mybatis --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.2.2</version> </dependency> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>3.2.8</version> </dependency> <!-- mysql --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.6</source> <target>1.6</target> </configuration> </plugin> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> <executions> <execution> <goals> <goal>repackage</goal> </goals> </execution> </executions> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>springloaded</artifactId> <version>1.2.5.RELEASE</version> </dependency> </dependencies> </plugin> </plugins> <!-- 指定最终生成jar包的文件名--> <finalName>spring-boot</finalName> </build> </project>
5.创建程序入口Application.java.
package com.lm.application; import org.apache.ibatis.session.SqlSessionFactory; import org.apache.tomcat.jdbc.pool.DataSource; import org.mybatis.spring.SqlSessionFactoryBean; import org.mybatis.spring.annotation.MapperScan; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.EnableAutoConfiguration; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.ComponentScan; import org.springframework.core.io.support.PathMatchingResourcePatternResolver; import org.springframework.jdbc.datasource.DataSourceTransactionManager; import org.springframework.transaction.PlatformTransactionManager; @EnableAutoConfiguration @SpringBootApplication @ComponentScan(basePackages={"com.lm"})//指定spring管理的bean所在的包 @MapperScan("com.lm.dao")//指定mybatis的mapper接口所在的包 public class Application{ public static void main(String[] args) { SpringApplication.run(Application.class, args); } //创建数据源 @Bean @ConfigurationProperties(prefix = "spring.datasource")//指定数据源的前缀 ,在application.properties文件中指定 public DataSource dataSource() { return new DataSource(); } //创建SqlSessionFactory @Bean public SqlSessionFactory sqlSessionFactoryBean() throws Exception { SqlSessionFactoryBean sqlSessionFactoryBean = new SqlSessionFactoryBean(); sqlSessionFactoryBean.setDataSource(dataSource()); PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(); sqlSessionFactoryBean.setMapperLocations(resolver.getResources("classpath:/mybatis/*.xml")); return sqlSessionFactoryBean.getObject(); } //创建事物管理器 @Bean public PlatformTransactionManager transactionManager() { return new DataSourceTransactionManager(dataSource()); } }
6.在src/main/resources下建立应用的配置文件application.properties。
#datasource spring.datasource.url=jdbc:mysql://127.0.0.1:3306/你的数据库名称?useUnicode=true&characterEncoding=utf8&zeroDateTimeBehavior=convertToNull spring.datasource.username=数据库用户名 spring.datasource.password=数据库密码 spring.datasource.driver-class-name=com.mysql.jdbc.Driver # FREEMARKER (FreeMarkerAutoConfiguration) spring.freemarker.allow-request-override=false spring.freemarker.allow-session-override=false spring.freemarker.cache=true spring.freemarker.charset=UTF-8 spring.freemarker.check-template-location=true spring.freemarker.content-type=text/html spring.freemarker.enabled=true spring.freemarker.expose-request-attributes=false spring.freemarker.expose-session-attributes=false spring.freemarker.expose-spring-macro-helpers=true spring.freemarker.prefer-file-system-access=true spring.freemarker.suffix=.ftl spring.freemarker.template-loader-path=classpath:/templates/ spring.freemarker.settings.template_update_delay=0 spring.freemarker.settings.default_encoding=UTF-8 spring.freemarker.settings.classic_compatible=true spring.freemarker.order=1 #server server.port=80
相应的配置需要根据自己的实际情况去做修改。
7.在在src/main/resources下创建mybatis目录并在目录下创建UserMapper.xml文件:
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd"> <mapper namespace="com.lm.dao.UserMapper"> <select id="findAll" resultType="com.lm.model.User" parameterType="java.lang.String"> select id, username,password,email from t_user </select> </mapper>
8.创建UserController类和视图文件:
package com.lm.controller; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping; import com.lm.model.User; import com.lm.service.UserService; @Controller @RequestMapping("/user") public class UserController { @Autowired private UserService userService; @RequestMapping("/list") public String list(ModelMap map){ List<User> userList=userService.findAll(); map.addAttribute("userList", userList); return "/user/list"; } }
可以看出list方法返回的是一个字符串,因为我们给应用加载了freemarker模块做视图展现,所以需要创建一个list模板,模板所在的目录在application.properties中指定为spring.freemarker.template-loader-path=classpath:/templates/,所以我们需要在src/main/resources下创建templates目录,然后在templates下创建user目录,模板文件后缀在application.properties中指定为spring.freemarker.suffix=.ftl,所以最终建立一个list.ftl文件:
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>用户列表</title> </head> <body> <table> <tr> <th>id</th><th>用户名</th><th>密码</th><th>邮箱</th> </tr> <#list userList as user> <tr> <td>${user.id}</td> <td>${user.username}</td><td>${user.password}</td><td>${user.email}</td> </tr> </#list> </table> </body> </html>
模板文件所在位置的目录结构如下图:
9.创建UserService接口:
package com.lm.service; import java.util.List; import com.lm.model.User; public interface UserService { List<User> findAll(); }
10.创建UserServiceImpl类实现UserService接口:
package com.lm.service.impl; import java.util.List; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import com.lm.dao.UserMapper; import com.lm.model.User; import com.lm.service.UserService; @Service public class UserServiceImpl implements UserService{ @Autowired private UserMapper userMapper; @Override public List<User> findAll() { return userMapper.findAll(); } }
11.创建UserMapper接口:
package com.lm.dao; import java.util.List; import com.lm.model.User; public interface UserMapper { List<User> findAll(); }
12.创建实体类User:
package com.lm.model; public class User { private Integer id; private String username; private String password; private String email; public Integer getId() { return id; } public void setId(Integer id) { this.id = id; } public String getUsername() { return username; } public String getEmail() { return email; } public void setEmail(String email) { this.email = email; } public void setUsername(String username) { this.username = username; } public String getPassword() { return password; } public void setPassword(String password) { this.password = password; } }
13.至此spring-boot框架已搭建完成,然后在Application.java中run as >java application此时在控制台会看到如下日志输出:
14.打开浏览器在地址栏输入http://localhost/user/list便可以看到以下效果:
15.在pom.xml文件上右键Run As>Maven install可将项目打包为jar文件,生成的jar在target目录下,可以将此jar拷贝到服务器上通过"java -jar 最终生成jar包的名字"运行项目。
16.本项目的源码已经上传到spring-boot_jb51.rar,有需要的朋友可以自行下载
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持脚本之家。
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